Torpedo-guard for war-ships.



N. F. RODZIKEVITCH.

TURPEDO GUARD FOR WAH SHIPS.

APPUCATION FILED mac. 1. m5.

1,225,498. I Patented May 8,1917.

3 SHEETS-SHEET I.

N. F. RODZIKEVITCH.

TOBPEDO GUARD FOR WAR SHIPS.

APPLICATIION FILED DEC.\. 1916.

1,225,498. Patented May 8, 1917 3 SHEETS-SHEET 2. 7

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N. F. RODZIKEVITCH.

TORPEDO GUARD FOR WAR SHIPS.

APPLICATION FILED DEC. I. 1916.

1,225,498. Patented May 8,1917.

3 SHEETSSHEET 3.

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NIKOLAJ IE. RODZIKEVITCH, OF FARRELL, PENNSYLVANIA.

TORPEDO-GUARF FOR WAR-SHIPS.

Specification of Letters Patent.

Patented May S, 1917.

Application filed December 1, 1916. Serial No. 134,446.

I '0 all whom it may concern Be it known that I, NIKOLAJ F. RonzmnvrroH, subject of the Czar of Russia, residing at Farrell, in the county of Mercer and State of Pennsylvania, have invented certain new and useful Im rovements in Torpedo-Guards for War-S ips, of which the following is a specification.

This invention relates to ships and has particular reference to a torpedo guard for war ships and other vessels exposed to attacks by an enemys torpedoes.

One important object of the invention is to provide an improved foldable torpedo net for use by ships.

A second important object of the invention is to provide an improved arrangement of torpedo net which will be attached to the ship it is designed to protect but will have such free movement relative thereto as will permit it to maintain the same under water area at all times.

A third important object of the invention is to provide an improved form of net arranged to be folded in against a ships sides or held spaced therefrom, the movement of the net from one position to the other being effected by mechanism arranged to pull upon one end of the net and slack off on the other simultaneously.

A fourth important object of the invention is the provision of novel means at the bow and stern of the ship to efiect closing in of the side nets at these points whereby to protect the ends of the ship.

With the above and other objects in view, as will be hereinafter apparent the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawing, and specifically claimed.

In the accompanying drawing, like characters of reference indicate like parts in the several views, and

Figure 1 is a plan of a ships hull showing the invention applied thereto.

Fig. 2 is a side elevation thereof.

Fig, 3 is an enlarged detail showing the connection between certain pontoons and guides used herewith.

Fig. 4 is a section on the line 44 of Fig. 3.

Fig. 5 is a detail section showing a portion of the bow support for the nets.

Fig. 6 is a detail view showing the attachment of the bow cable to the nets.

Fig. 7 is a detail section showing a por tion of the ships hull and the outrigger booms.

In carrying out the objects of this invention one preferred embodiment is shown in the drawings wherein the hull of the ship is indicated at 10. Fixed along the sides of this hull and preferably below the water line are horizontally spaced pairs of vertically spaced brackets 11 to each of which is pivoted the inboard end of an outrigger boom 12. It is to be noticed that the extreme forward booms are of less length than the intermediate booms.

Pivotally mounted on the outer end of each of these booms is a bracket 13 and on each pair of these brackets are fixed the vertical guides 14 provided with inwardly extending lips 15. Freely movable in these guides are balls 16 having stems 17 which project from the guides between the lips 15.

At 18 are hollow metal pontoons through each of which extends a tube 19 into the ends of which are telescopically fitted the stems 17. Each of these pontoons extends nearly from one of the guides to the next and it will be seen that, by means of this construction the rolling or pitching of the ship will not affect the position of the pontoons relative to the surface of the water since these pontoons remain always at the i ufiface no matter how the guides rise and Beneath each pontoon is fixed a keel 20 having spaced eyes 21 projecting downward therefrom and to these eyes are connected the upper edges of net sections 22 which are connected together by chains 23.

Extending forward from the bow of the ship are booms 24 and these booms are rigidly connected to the ship. Furthermore, the booms 24 have their forward ends connected by a guard 25. Journaled in the upper booms 24 are sheaves 26 and carried by the lower of the sheave supporting booms is a bracket 27 whereon are journaled sheaves 28, the axes of the latter being vertical. At 29 is a capstan on which is wound one end of a cable 30 passing over guide sheaves 31 to the sheaves 26 and 29 and terminating in branches each of which is provided with an eye 32 working on a bar 33 carried by a member 34 to which the forward chains 23 are connected and having a fixed pintle 35 entering the forward end of the forward pontoon tube 18.

At the after end of the ship is a capstan 3U whereon is wound one end of a fable 3? which is bifurcated and led over guide pulleys 38, the ends being connected. to the after guides 14. Projecting from the quarters of the ship are fixed booms 39 carrying guide pulleys it] over which the cable I17 has its ends trained. To these licoms 39 are connected the upper stern corners ot the after net sections $1, the upper leaches of these nets being provided with rings +2 slidable on the end portions of said cable 3?.

Extending longitudinally of the ship is a. shaft 43 which is driven by any suitable enginc (not shown) and which is connected to each: ot the capstans by gearing i l in such manner that when one cable is wound up the other will be unwound.

In the operation of the device let it be sup posed that the parts are in the position shown in Fig. l and that it is desired to draw the nets inward. Then the shaft i3 is rotated so as to wind up the stern cable and slack off the: forward cable simultaneously. Thiswill cause all the booms to swing sternwaa'dand inboard till they lie close to the ship. At the same time the after not see tions will gathen between the booms 39 and the a-fiter swinging booms. It is obvious that reversing this operation will restore the nets to their outboard position.

There has thus been provided a. simple and eflieient device of the kind described and for the purpose specified.

It is obvious that many minor changes may be made in the form and construction ot'the invention without departing from the material principles thereof. It is not therefore desired to confine the invention to the exact form herein shown and described but it is wished to include all such as properly come within the scope claimed.

Having thus described the invention, what is. claimed as new, is

t. The combination with a ship; of a series of pontoons. a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms, connected nets supported from said pontoons, and universally jointed connections between said guides and the ends of said pontoons.

Q. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free end of said booms, connected nets supported from said pontoons. and universally and telescopically jointed connections between said guides and the ends of said pontoons.

3. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms, connected nets supported from said pontoons, balls slidably mounted in said guides, and. stems on said balls connected to the ends of said pontoons and universally jointed connections between said guides and the ends of said pontoons.

4.. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said! booms, connected nets supported from said pontoons, balls slidably mounted in said guides, and stems on said balls telescopically connected to the ends of said pontoons.

5. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms, connected nets supported from said pontoons, balls slidably mounted in. said guides, stems on said balls connected to the ends of Said pontoons and universally jointed connections between said guides and the ends of said pontoons, and tubes extending through the pontoons and receiving said stems.

6. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms, connected nets supported from said pontoons, universally jointed connections between said guides and the ends of said pontoons, cables arranged to draw respectively on the forward and after booms, and means to draw on one cable and slack off on the other equally and simultaneously.

7. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms, connected nets supported from said pontoons, universally and telescopically jointed connections between said: guides and the ends of said pontoons, cables arranged to draw respectively on the forward and after booms, and means to draw on one cable and slack off on the other equally and simultancously.

8. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted-to the ships, vertical. guides supported by the free ends of said booms, connected nets supported from said pontoons, balls slid-ably mounted in said guides, and stems on said balls connected. to the ends of said pontoons and universally jointed connections between said guides and the ends of said pontoons, cables arranged to draw respectively on the forward and after booms, and means to draw on one cable and slack off on the other equally and simultaneously.

9. The combination with a ship, of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms, connected nets supported from said pontoons, balls slidably mounted in said guides, stems on said balls telescopically connected to the ends of said pontoons, cables arranged to draw respectively on the forward and after booms, and means to draw on one cable and slack ofl on the other equally and simultaneously.

10. The combination with a ship; of a series of pontoons, a series of swinging booms pivoted to the ships, vertical guides supported by the free ends of said booms,

connected nets supported from said pontoons, balls slidably mounted in said guides, stems on said balls, connected to the ends of said pontoons and universally jointed connections between said guides and the 20 ends of said pontoons, tubes extending through the pontoons and receiving said stems, cables arranged to draw respectively on the forward and after booms, and means to draw on one cable and slack ofi' on the 25 Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. O. 

